Alexander Udalov
92 lines
2.5 KiB
Kotlin
92 lines
2.5 KiB
Kotlin
package test.tuples
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import kotlin.test.assertTrue
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import org.junit.Test as test
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import kotlin.test.assertEquals
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class PairTest {
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val p = Pair(1, "a")
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test fun pairFirstAndSecond() {
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assertEquals(1, p.first)
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assertEquals("a", p.second)
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}
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test fun pairMultiAssignment() {
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val (a, b) = p
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assertEquals(1, a)
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assertEquals("a", b)
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}
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test fun pairToString() {
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assertEquals("(1, a)", p.toString())
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}
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test fun pairEquals() {
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assertTrue(p == Pair(1, "a"))
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assertTrue(p != Pair(2, "a"))
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assertTrue(p != Pair(1, "b"))
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assertTrue(!p.equals(null))
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assertTrue((p : Any) != "")
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}
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test fun pairHashCode() {
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assertTrue(p.hashCode() == Pair(1, "a").hashCode())
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assertTrue(p.hashCode() != Pair(2, "a").hashCode())
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assertTrue(Pair(null, "b").hashCode() != 0)
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assertTrue(Pair("b", null).hashCode() != 0)
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assertTrue(Pair(null, null).hashCode() == 0)
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}
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test fun pairHashSet() {
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val s = hashSet(Pair(1, "a"), Pair(1, "b"), Pair(1, "a"))
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assertTrue(s.size == 2)
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assertTrue(s.contains(p))
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}
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}
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class TripleTest {
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val t = Triple(1, "a", 0.0)
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test fun tripleFirstAndSecond() {
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assertTrue(t.first == 1)
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assertTrue(t.second == "a")
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assertTrue(t.third == 0.0)
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}
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test fun tripleMultiAssignment() {
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val (a, b, c) = t
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assertTrue(a == 1)
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assertTrue(b == "a")
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assertTrue(c == 0.0)
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}
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test fun tripleToString() {
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assertEquals("(1, a, 0.0)", t.toString())
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}
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test fun tripleEquals() {
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assertTrue(t == Triple(1, "a", 0.0))
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assertTrue(t != Triple(2, "a", 0.0))
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assertTrue(t != Triple(1, "b", 0.0))
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assertTrue(t != Triple(1, "a", 0.1))
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assertTrue(!t.equals(null))
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assertTrue((t : Any) != "")
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}
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test fun tripleHashCode() {
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assertTrue(t.hashCode() == Triple(1, "a", 0.0).hashCode())
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assertTrue(t.hashCode() != Triple(2, "a", 0.0).hashCode())
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assertTrue(Triple(null, "b", 0.0).hashCode() != 0)
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assertTrue(Triple("b", null, 0.0).hashCode() != 0)
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assertTrue(Triple("b", 1, null).hashCode() != 0)
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assertTrue(Triple(null, null, null).hashCode() == 0)
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}
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test fun tripleHashSet() {
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val s = hashSet(Triple(1, "a", 0.0), Triple(1, "b", 0.0), Triple(1, "a", 0.0))
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assertTrue(s.size == 2)
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assertTrue(s.contains(t))
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}
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}
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